Urban greening quantity digital map manufacturing and displaying method

Abstract

The invention discloses an urban greening quantity digital map manufacturing and displaying method. The urban greening quantity digital map manufacturing and displaying method comprises the following steps: importing urban basic map data into a geographic information system to form an urban three-dimensional vector information module; separating spectral information pixels related to greening quantity in a satellite remote sensing image, acquiring characteristic data and plane quantity of different tree species, simulating three-dimensional quantity through the plane quantity to calculate the greening quantity, storing greening quantity pixel information in an image form, storing a greening quantity result in a data table form, and forming an urban greening quantity database; connecting the urban three-dimensional vector information module and the urban greening quantity database, establishing map layers with different attributes, superposing database information, and exporting an urban greening quantity digital map. According to the urban greening quantity digital map manufacturing and displaying method, the greening quantity data and the urban map are superposed in a digital map system, and visual dynamic inquiry and display of the greening quantity data is realized. The urban greening quantity digital map manufacturing and displaying method can be used in the fields of urban planning, landscape gardens and building designs, and is a practical method for aided design and urban construction decision-making management.

Description

technical field [0001] The invention relates to a method for making a digital map, and more particularly to a method for making and displaying a digital map of urban green quantity. Background technique [0002] In the period of rapid urban development, improving the quality of urban environment is an important task of urban space environment planning and urban greening garden construction, which requires scientific and reasonable planning of urban green space system. For cities, especially urban centers with extremely high building density, using limited land resources and choosing a good greening structure can effectively improve the ecological and environmental benefits of urban greening. Green quantity is the total amount of green plants per unit area, also known as three-dimensional green biomass. It is a vegetation index that reflects the growth state and spatial distribution density of vegetation. The size of green quantity affects the economic and ecological benefits...

AI Technical Summary

Problems solved by technology

At present, there is no invention of digital map production and display of urban green quantity in China. This invention focuses on image production and display technology of digital map of urban green quantity for the first time.

Images